<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表单域</title>
</head>

<body>
    <!-- <form action="url地址" method="提交方式" name="表单域名称">
        各种控件 -->
        <form action="demo.php" method="POST" name = "namel">

        </form>
    <!-- </form> -->
</body>

</html>